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Find the number of 5 letter words which can be formed from word PULSE if repetition is allowed.

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Find the number of 5 letter words which can be formed from word PULSE if repetition is allowed.

(a) 25

(b) 120

(c) 125

(d) 3125

I have been asked this question in my homework.

The origin of the question is Fundamental Principle of Counting topic in division Permutations and Combinations of Mathematics – Class 11

1 Answer

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Best answer
Right option is (d) 3125

The best explanation: PULSE is a 5 letters word. By the fundamental principle of counting, total number of possible words with repetition allowed are 5*5*5*5*5 = 3125.

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